Merge #9190: qt: Plug many memory leaks

ed998ea qt: Avoid OpenSSL certstore-related memory leak (Wladimir J. van der Laan)
5204598 qt: Avoid shutdownwindow-related memory leak (Wladimir J. van der Laan)
e4f126a qt: Avoid splash-screen related memory leak (Wladimir J. van der Laan)
693384e qt: Prevent thread/memory leak on exiting RPCConsole (Wladimir J. van der Laan)
47db075 qt: Plug many memory leaks (Wladimir J. van der Laan)

1 files changed, 9 insertions, 4 deletions

diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index b7302e3969..6112a1d256 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -511,6 +511,13 @@ void BitcoinGUI::setClientModel(ClientModel *_clientModel)
             // Disable context menu on tray icon
             trayIconMenu->clear();
         }
+        // Propagate cleared model to child objects
+        rpcConsole->setClientModel(nullptr);
+#ifdef ENABLE_WALLET
+        walletFrame->setClientModel(nullptr);
+#endif // ENABLE_WALLET
+        unitDisplayControl->setOptionsModel(nullptr);
+        connectionsControl->setClientModel(nullptr);
     }
 }
 
@@ -1191,7 +1198,7 @@ void UnitDisplayStatusBarControl::mousePressEvent(QMouseEvent *event)
 /** Creates context menu, its actions, and wires up all the relevant signals for mouse events. */
 void UnitDisplayStatusBarControl::createContextMenu()
 {
-    menu = new QMenu();
+    menu = new QMenu(this);
     Q_FOREACH(BitcoinUnits::Unit u, BitcoinUnits::availableUnits())
     {
         QAction *menuAction = new QAction(QString(BitcoinUnits::name(u)), this);
@@ -1248,7 +1255,5 @@ void NetworkToggleStatusBarControl::mousePressEvent(QMouseEvent *event)
 /** Lets the control know about the Client Model */
 void NetworkToggleStatusBarControl::setClientModel(ClientModel *_clientModel)
 {
-    if (_clientModel) {
-        this->clientModel = _clientModel;
-    }
+    this->clientModel = _clientModel;
 }